The CA723 and CA723C are silicon monolithic integrated cir-cuits designed for service as voltage regulators at output volt-ages ranging from 2V to 37V at currents up to 150mA.

Each type includes a temperature-compensated referenceamplifier, an error amplifier, a power series pass transistor, anda current-limiting circuit. They also provide independently acces-sible inputs for adjustable current limiting and remote shutdownand, in addition, feature low standby current drain, low tempera-ture drift, and high ripple rejection.

The CA723 and CA723C may be used with positive and nega-tive power supplies in a wide variety of series, shunt, switching,and floating regulator applications. They can provide regulationat load currents greater than 150mA and in excess of 10A withthe use of suitable n-p-n or p-n-p external pass transistors.

The CA723 and CA723C are supplied in the 10 lead TO-100metal can(T suffix), and the 14 lead dual-in-line plastic package(E suffix), and are direct replacements for industry types LM723,LM723C in packages with similar terminal arrangements.

Features

· Up to 150mA Output Current· Positive and Negative Voltage Regulation· Regulation in Excess of 10A with Suitable Pass

CAUTION: Stresses above those listed in "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress only rating and operationof the device at these or any other conditions above those indicated in the operational sections of this specification is not implied.

DC Electrical Specifications

T

A

= +25

o

C, V+ = V

C

= V

I

= 12V, V- = 0, V

O

= 5V, I

L

= 1mA, C

1

= 100pF, C

REF

= 0, R

SCP

= 0,

Unless Otherwise Specified. Divider impedance R

1

R

2

÷

R

1

+ R

2

at noninverting input, Terminal 5 =

10k

. (Figure 20)

PARAMETERS

TEST CONDITION

CA723

CA723C

UNITS

MIN

TYP

MAX

MIN

TYP

MAX

DC CHARACTERISTICS

Quiescent Regulator Current, I

Q

I

L

= 0, V

I

= 30V

-

2.3

3.5

-

2.3

4

mA

Input Voltage Range, V

I

9.5

-

40

9.5

-

40

V

Output Voltage Range, V

O

2

-

37

2

-

37

V

Differential Input-Output Voltage, V

I

- V

O

3

-

38

3

-

38

V

Reference Voltage, V

REF

6.95

7.15

7.35

6.8

7.15

7.5

V

Line Regulation (Note 1)

V

I

= 12V to 40V

-

0.02

0.2

-

0.1

0.5

% V

O

V

I

= 12V to 15V

-

0.01

0.1

-

0.01

0.1

% V

O

V

I

= 12V to 15V,

T

A

= -55

o

C to +125

o

C

-

-

0.3

-

-

-

% V

O

V

I

= 12V to 15V,

T

A

= 0

o

C to +70

o

C

-

-

-

-

-

0.3

% V

O

Load Regulation (Note 1)

I

L

= 1mA to 50mA

-

0.03

0.15

-

0.03

0.2

% V

O

I

L

= 1mA to 50mA,

T

A

= -55

o

C to +125

o

C

-

-

0.6

-

-

-

% V

O

I

L

= 1mA to 50mA,

T

A

= 0

o

C to +70

o

C

-

-

-

-

-

0.6

% V

O

Output-Voltage Temperature Coeffi-cient,

V

O

T

A

= -55

o

C to +125

o

C

-

0.002

0.015

-

-

-

%/

o

C

T

A

= 0

o

C to +70

o

C

-

-

-

-

0.003

0.015

%/

o

C

Ripple Rejection (Note 2)

f = 50Hz to 10kHz

-

74

-

-

74

-

dB

f = 50Hz to 10kHz,C

REF

= 5

µ

F

-

86

-

-

86

-

dB

Short Circuit Limiting Current, I

LIM

R

SCP

= 10

, V

O

= 0

-

65

-

-

65

-

mA

Equivalent Noise RMS Output Voltage,V

N

(Note 2)

BW = 100Hz to 10kHz,C

REF

= 0

-

-20

-

-

20

-

µ

V

BW = 100Hz to 10kHz,C

REF

= 5

µ

F

-

2.5

-

-

2.5

-

µ

V

NOTES:

1. Line and load regulation specifications are given for condition of a constant chip temperature. For high dissipation condition, temperature